xref: /freebsd/crypto/openssl/apps/cms.c (revision bae28eaa8d26ddd67e9af51979f1a54599e9b3a8)
1 /* apps/cms.c */
2 /*
3  * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
4  * project.
5  */
6 /* ====================================================================
7  * Copyright (c) 2008 The OpenSSL Project.  All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  *
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  *
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in
18  *    the documentation and/or other materials provided with the
19  *    distribution.
20  *
21  * 3. All advertising materials mentioning features or use of this
22  *    software must display the following acknowledgment:
23  *    "This product includes software developed by the OpenSSL Project
24  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25  *
26  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27  *    endorse or promote products derived from this software without
28  *    prior written permission. For written permission, please contact
29  *    licensing@OpenSSL.org.
30  *
31  * 5. Products derived from this software may not be called "OpenSSL"
32  *    nor may "OpenSSL" appear in their names without prior written
33  *    permission of the OpenSSL Project.
34  *
35  * 6. Redistributions of any form whatsoever must retain the following
36  *    acknowledgment:
37  *    "This product includes software developed by the OpenSSL Project
38  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39  *
40  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
44  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51  * OF THE POSSIBILITY OF SUCH DAMAGE.
52  * ====================================================================
53  */
54 
55 /* CMS utility function */
56 
57 #include <stdio.h>
58 #include <string.h>
59 #include "apps.h"
60 
61 #ifndef OPENSSL_NO_CMS
62 
63 # include <openssl/crypto.h>
64 # include <openssl/pem.h>
65 # include <openssl/err.h>
66 # include <openssl/x509_vfy.h>
67 # include <openssl/x509v3.h>
68 # include <openssl/cms.h>
69 
70 # undef PROG
71 # define PROG cms_main
72 static int save_certs(char *signerfile, STACK_OF(X509) *signers);
73 static int cms_cb(int ok, X509_STORE_CTX *ctx);
74 static void receipt_request_print(BIO *out, CMS_ContentInfo *cms);
75 static CMS_ReceiptRequest *make_receipt_request(STACK_OF(OPENSSL_STRING)
76                                                 *rr_to, int rr_allorfirst, STACK_OF(OPENSSL_STRING)
77                                                 *rr_from);
78 
79 # define SMIME_OP        0x10
80 # define SMIME_IP        0x20
81 # define SMIME_SIGNERS   0x40
82 # define SMIME_ENCRYPT           (1 | SMIME_OP)
83 # define SMIME_DECRYPT           (2 | SMIME_IP)
84 # define SMIME_SIGN              (3 | SMIME_OP | SMIME_SIGNERS)
85 # define SMIME_VERIFY            (4 | SMIME_IP)
86 # define SMIME_CMSOUT            (5 | SMIME_IP | SMIME_OP)
87 # define SMIME_RESIGN            (6 | SMIME_IP | SMIME_OP | SMIME_SIGNERS)
88 # define SMIME_DATAOUT           (7 | SMIME_IP)
89 # define SMIME_DATA_CREATE       (8 | SMIME_OP)
90 # define SMIME_DIGEST_VERIFY     (9 | SMIME_IP)
91 # define SMIME_DIGEST_CREATE     (10 | SMIME_OP)
92 # define SMIME_UNCOMPRESS        (11 | SMIME_IP)
93 # define SMIME_COMPRESS          (12 | SMIME_OP)
94 # define SMIME_ENCRYPTED_DECRYPT (13 | SMIME_IP)
95 # define SMIME_ENCRYPTED_ENCRYPT (14 | SMIME_OP)
96 # define SMIME_SIGN_RECEIPT      (15 | SMIME_IP | SMIME_OP)
97 # define SMIME_VERIFY_RECEIPT    (16 | SMIME_IP)
98 
99 int verify_err = 0;
100 
101 int MAIN(int, char **);
102 
103 int MAIN(int argc, char **argv)
104 {
105     ENGINE *e = NULL;
106     int operation = 0;
107     int ret = 0;
108     char **args;
109     const char *inmode = "r", *outmode = "w";
110     char *infile = NULL, *outfile = NULL, *rctfile = NULL;
111     char *signerfile = NULL, *recipfile = NULL;
112     STACK_OF(OPENSSL_STRING) *sksigners = NULL, *skkeys = NULL;
113     char *certfile = NULL, *keyfile = NULL, *contfile = NULL;
114     char *certsoutfile = NULL;
115     const EVP_CIPHER *cipher = NULL;
116     CMS_ContentInfo *cms = NULL, *rcms = NULL;
117     X509_STORE *store = NULL;
118     X509 *cert = NULL, *recip = NULL, *signer = NULL;
119     EVP_PKEY *key = NULL;
120     STACK_OF(X509) *encerts = NULL, *other = NULL;
121     BIO *in = NULL, *out = NULL, *indata = NULL, *rctin = NULL;
122     int badarg = 0;
123     int flags = CMS_DETACHED, noout = 0, print = 0;
124     int verify_retcode = 0;
125     int rr_print = 0, rr_allorfirst = -1;
126     STACK_OF(OPENSSL_STRING) *rr_to = NULL, *rr_from = NULL;
127     CMS_ReceiptRequest *rr = NULL;
128     char *to = NULL, *from = NULL, *subject = NULL;
129     char *CAfile = NULL, *CApath = NULL;
130     char *passargin = NULL, *passin = NULL;
131     char *inrand = NULL;
132     int need_rand = 0;
133     const EVP_MD *sign_md = NULL;
134     int informat = FORMAT_SMIME, outformat = FORMAT_SMIME;
135     int rctformat = FORMAT_SMIME, keyform = FORMAT_PEM;
136 # ifndef OPENSSL_NO_ENGINE
137     char *engine = NULL;
138 # endif
139     unsigned char *secret_key = NULL, *secret_keyid = NULL;
140     unsigned char *pwri_pass = NULL, *pwri_tmp = NULL;
141     size_t secret_keylen = 0, secret_keyidlen = 0;
142 
143     ASN1_OBJECT *econtent_type = NULL;
144 
145     X509_VERIFY_PARAM *vpm = NULL;
146 
147     args = argv + 1;
148     ret = 1;
149 
150     apps_startup();
151 
152     if (bio_err == NULL) {
153         if ((bio_err = BIO_new(BIO_s_file())) != NULL)
154             BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
155     }
156 
157     if (!load_config(bio_err, NULL))
158         goto end;
159 
160     while (!badarg && *args && *args[0] == '-') {
161         if (!strcmp(*args, "-encrypt"))
162             operation = SMIME_ENCRYPT;
163         else if (!strcmp(*args, "-decrypt"))
164             operation = SMIME_DECRYPT;
165         else if (!strcmp(*args, "-sign"))
166             operation = SMIME_SIGN;
167         else if (!strcmp(*args, "-sign_receipt"))
168             operation = SMIME_SIGN_RECEIPT;
169         else if (!strcmp(*args, "-resign"))
170             operation = SMIME_RESIGN;
171         else if (!strcmp(*args, "-verify"))
172             operation = SMIME_VERIFY;
173         else if (!strcmp(*args, "-verify_retcode"))
174             verify_retcode = 1;
175         else if (!strcmp(*args, "-verify_receipt")) {
176             operation = SMIME_VERIFY_RECEIPT;
177             if (!args[1])
178                 goto argerr;
179             args++;
180             rctfile = *args;
181         } else if (!strcmp(*args, "-cmsout"))
182             operation = SMIME_CMSOUT;
183         else if (!strcmp(*args, "-data_out"))
184             operation = SMIME_DATAOUT;
185         else if (!strcmp(*args, "-data_create"))
186             operation = SMIME_DATA_CREATE;
187         else if (!strcmp(*args, "-digest_verify"))
188             operation = SMIME_DIGEST_VERIFY;
189         else if (!strcmp(*args, "-digest_create"))
190             operation = SMIME_DIGEST_CREATE;
191         else if (!strcmp(*args, "-compress"))
192             operation = SMIME_COMPRESS;
193         else if (!strcmp(*args, "-uncompress"))
194             operation = SMIME_UNCOMPRESS;
195         else if (!strcmp(*args, "-EncryptedData_decrypt"))
196             operation = SMIME_ENCRYPTED_DECRYPT;
197         else if (!strcmp(*args, "-EncryptedData_encrypt"))
198             operation = SMIME_ENCRYPTED_ENCRYPT;
199 # ifndef OPENSSL_NO_DES
200         else if (!strcmp(*args, "-des3"))
201             cipher = EVP_des_ede3_cbc();
202         else if (!strcmp(*args, "-des"))
203             cipher = EVP_des_cbc();
204 # endif
205 # ifndef OPENSSL_NO_SEED
206         else if (!strcmp(*args, "-seed"))
207             cipher = EVP_seed_cbc();
208 # endif
209 # ifndef OPENSSL_NO_RC2
210         else if (!strcmp(*args, "-rc2-40"))
211             cipher = EVP_rc2_40_cbc();
212         else if (!strcmp(*args, "-rc2-128"))
213             cipher = EVP_rc2_cbc();
214         else if (!strcmp(*args, "-rc2-64"))
215             cipher = EVP_rc2_64_cbc();
216 # endif
217 # ifndef OPENSSL_NO_AES
218         else if (!strcmp(*args, "-aes128"))
219             cipher = EVP_aes_128_cbc();
220         else if (!strcmp(*args, "-aes192"))
221             cipher = EVP_aes_192_cbc();
222         else if (!strcmp(*args, "-aes256"))
223             cipher = EVP_aes_256_cbc();
224 # endif
225 # ifndef OPENSSL_NO_CAMELLIA
226         else if (!strcmp(*args, "-camellia128"))
227             cipher = EVP_camellia_128_cbc();
228         else if (!strcmp(*args, "-camellia192"))
229             cipher = EVP_camellia_192_cbc();
230         else if (!strcmp(*args, "-camellia256"))
231             cipher = EVP_camellia_256_cbc();
232 # endif
233         else if (!strcmp(*args, "-debug_decrypt"))
234             flags |= CMS_DEBUG_DECRYPT;
235         else if (!strcmp(*args, "-text"))
236             flags |= CMS_TEXT;
237         else if (!strcmp(*args, "-nointern"))
238             flags |= CMS_NOINTERN;
239         else if (!strcmp(*args, "-noverify")
240                  || !strcmp(*args, "-no_signer_cert_verify"))
241             flags |= CMS_NO_SIGNER_CERT_VERIFY;
242         else if (!strcmp(*args, "-nocerts"))
243             flags |= CMS_NOCERTS;
244         else if (!strcmp(*args, "-noattr"))
245             flags |= CMS_NOATTR;
246         else if (!strcmp(*args, "-nodetach"))
247             flags &= ~CMS_DETACHED;
248         else if (!strcmp(*args, "-nosmimecap"))
249             flags |= CMS_NOSMIMECAP;
250         else if (!strcmp(*args, "-binary"))
251             flags |= CMS_BINARY;
252         else if (!strcmp(*args, "-keyid"))
253             flags |= CMS_USE_KEYID;
254         else if (!strcmp(*args, "-nosigs"))
255             flags |= CMS_NOSIGS;
256         else if (!strcmp(*args, "-no_content_verify"))
257             flags |= CMS_NO_CONTENT_VERIFY;
258         else if (!strcmp(*args, "-no_attr_verify"))
259             flags |= CMS_NO_ATTR_VERIFY;
260         else if (!strcmp(*args, "-stream"))
261             flags |= CMS_STREAM;
262         else if (!strcmp(*args, "-indef"))
263             flags |= CMS_STREAM;
264         else if (!strcmp(*args, "-noindef"))
265             flags &= ~CMS_STREAM;
266         else if (!strcmp(*args, "-nooldmime"))
267             flags |= CMS_NOOLDMIMETYPE;
268         else if (!strcmp(*args, "-crlfeol"))
269             flags |= CMS_CRLFEOL;
270         else if (!strcmp(*args, "-noout"))
271             noout = 1;
272         else if (!strcmp(*args, "-receipt_request_print"))
273             rr_print = 1;
274         else if (!strcmp(*args, "-receipt_request_all"))
275             rr_allorfirst = 0;
276         else if (!strcmp(*args, "-receipt_request_first"))
277             rr_allorfirst = 1;
278         else if (!strcmp(*args, "-receipt_request_from")) {
279             if (!args[1])
280                 goto argerr;
281             args++;
282             if (!rr_from)
283                 rr_from = sk_OPENSSL_STRING_new_null();
284             sk_OPENSSL_STRING_push(rr_from, *args);
285         } else if (!strcmp(*args, "-receipt_request_to")) {
286             if (!args[1])
287                 goto argerr;
288             args++;
289             if (!rr_to)
290                 rr_to = sk_OPENSSL_STRING_new_null();
291             sk_OPENSSL_STRING_push(rr_to, *args);
292         } else if (!strcmp(*args, "-print")) {
293             noout = 1;
294             print = 1;
295         } else if (!strcmp(*args, "-secretkey")) {
296             long ltmp;
297             if (!args[1])
298                 goto argerr;
299             args++;
300             secret_key = string_to_hex(*args, &ltmp);
301             if (!secret_key) {
302                 BIO_printf(bio_err, "Invalid key %s\n", *args);
303                 goto argerr;
304             }
305             secret_keylen = (size_t)ltmp;
306         } else if (!strcmp(*args, "-secretkeyid")) {
307             long ltmp;
308             if (!args[1])
309                 goto argerr;
310             args++;
311             secret_keyid = string_to_hex(*args, &ltmp);
312             if (!secret_keyid) {
313                 BIO_printf(bio_err, "Invalid id %s\n", *args);
314                 goto argerr;
315             }
316             secret_keyidlen = (size_t)ltmp;
317         } else if (!strcmp(*args, "-pwri_password")) {
318             if (!args[1])
319                 goto argerr;
320             args++;
321             pwri_pass = (unsigned char *)*args;
322         } else if (!strcmp(*args, "-econtent_type")) {
323             if (!args[1])
324                 goto argerr;
325             args++;
326             econtent_type = OBJ_txt2obj(*args, 0);
327             if (!econtent_type) {
328                 BIO_printf(bio_err, "Invalid OID %s\n", *args);
329                 goto argerr;
330             }
331         } else if (!strcmp(*args, "-rand")) {
332             if (!args[1])
333                 goto argerr;
334             args++;
335             inrand = *args;
336             need_rand = 1;
337         }
338 # ifndef OPENSSL_NO_ENGINE
339         else if (!strcmp(*args, "-engine")) {
340             if (!args[1])
341                 goto argerr;
342             engine = *++args;
343         }
344 # endif
345         else if (!strcmp(*args, "-passin")) {
346             if (!args[1])
347                 goto argerr;
348             passargin = *++args;
349         } else if (!strcmp(*args, "-to")) {
350             if (!args[1])
351                 goto argerr;
352             to = *++args;
353         } else if (!strcmp(*args, "-from")) {
354             if (!args[1])
355                 goto argerr;
356             from = *++args;
357         } else if (!strcmp(*args, "-subject")) {
358             if (!args[1])
359                 goto argerr;
360             subject = *++args;
361         } else if (!strcmp(*args, "-signer")) {
362             if (!args[1])
363                 goto argerr;
364             /* If previous -signer argument add signer to list */
365 
366             if (signerfile) {
367                 if (!sksigners)
368                     sksigners = sk_OPENSSL_STRING_new_null();
369                 sk_OPENSSL_STRING_push(sksigners, signerfile);
370                 if (!keyfile)
371                     keyfile = signerfile;
372                 if (!skkeys)
373                     skkeys = sk_OPENSSL_STRING_new_null();
374                 sk_OPENSSL_STRING_push(skkeys, keyfile);
375                 keyfile = NULL;
376             }
377             signerfile = *++args;
378         } else if (!strcmp(*args, "-recip")) {
379             if (!args[1])
380                 goto argerr;
381             recipfile = *++args;
382         } else if (!strcmp(*args, "-certsout")) {
383             if (!args[1])
384                 goto argerr;
385             certsoutfile = *++args;
386         } else if (!strcmp(*args, "-md")) {
387             if (!args[1])
388                 goto argerr;
389             sign_md = EVP_get_digestbyname(*++args);
390             if (sign_md == NULL) {
391                 BIO_printf(bio_err, "Unknown digest %s\n", *args);
392                 goto argerr;
393             }
394         } else if (!strcmp(*args, "-inkey")) {
395             if (!args[1])
396                 goto argerr;
397             /* If previous -inkey arument add signer to list */
398             if (keyfile) {
399                 if (!signerfile) {
400                     BIO_puts(bio_err, "Illegal -inkey without -signer\n");
401                     goto argerr;
402                 }
403                 if (!sksigners)
404                     sksigners = sk_OPENSSL_STRING_new_null();
405                 sk_OPENSSL_STRING_push(sksigners, signerfile);
406                 signerfile = NULL;
407                 if (!skkeys)
408                     skkeys = sk_OPENSSL_STRING_new_null();
409                 sk_OPENSSL_STRING_push(skkeys, keyfile);
410             }
411             keyfile = *++args;
412         } else if (!strcmp(*args, "-keyform")) {
413             if (!args[1])
414                 goto argerr;
415             keyform = str2fmt(*++args);
416         } else if (!strcmp(*args, "-rctform")) {
417             if (!args[1])
418                 goto argerr;
419             rctformat = str2fmt(*++args);
420         } else if (!strcmp(*args, "-certfile")) {
421             if (!args[1])
422                 goto argerr;
423             certfile = *++args;
424         } else if (!strcmp(*args, "-CAfile")) {
425             if (!args[1])
426                 goto argerr;
427             CAfile = *++args;
428         } else if (!strcmp(*args, "-CApath")) {
429             if (!args[1])
430                 goto argerr;
431             CApath = *++args;
432         } else if (!strcmp(*args, "-in")) {
433             if (!args[1])
434                 goto argerr;
435             infile = *++args;
436         } else if (!strcmp(*args, "-inform")) {
437             if (!args[1])
438                 goto argerr;
439             informat = str2fmt(*++args);
440         } else if (!strcmp(*args, "-outform")) {
441             if (!args[1])
442                 goto argerr;
443             outformat = str2fmt(*++args);
444         } else if (!strcmp(*args, "-out")) {
445             if (!args[1])
446                 goto argerr;
447             outfile = *++args;
448         } else if (!strcmp(*args, "-content")) {
449             if (!args[1])
450                 goto argerr;
451             contfile = *++args;
452         } else if (args_verify(&args, NULL, &badarg, bio_err, &vpm))
453             continue;
454         else if ((cipher = EVP_get_cipherbyname(*args + 1)) == NULL)
455             badarg = 1;
456         args++;
457     }
458 
459     if (((rr_allorfirst != -1) || rr_from) && !rr_to) {
460         BIO_puts(bio_err, "No Signed Receipts Recipients\n");
461         goto argerr;
462     }
463 
464     if (!(operation & SMIME_SIGNERS) && (rr_to || rr_from)) {
465         BIO_puts(bio_err, "Signed receipts only allowed with -sign\n");
466         goto argerr;
467     }
468     if (!(operation & SMIME_SIGNERS) && (skkeys || sksigners)) {
469         BIO_puts(bio_err, "Multiple signers or keys not allowed\n");
470         goto argerr;
471     }
472 
473     if (operation & SMIME_SIGNERS) {
474         if (keyfile && !signerfile) {
475             BIO_puts(bio_err, "Illegal -inkey without -signer\n");
476             goto argerr;
477         }
478         /* Check to see if any final signer needs to be appended */
479         if (signerfile) {
480             if (!sksigners)
481                 sksigners = sk_OPENSSL_STRING_new_null();
482             sk_OPENSSL_STRING_push(sksigners, signerfile);
483             if (!skkeys)
484                 skkeys = sk_OPENSSL_STRING_new_null();
485             if (!keyfile)
486                 keyfile = signerfile;
487             sk_OPENSSL_STRING_push(skkeys, keyfile);
488         }
489         if (!sksigners) {
490             BIO_printf(bio_err, "No signer certificate specified\n");
491             badarg = 1;
492         }
493         signerfile = NULL;
494         keyfile = NULL;
495         need_rand = 1;
496     }
497 
498     else if (operation == SMIME_DECRYPT) {
499         if (!recipfile && !keyfile && !secret_key && !pwri_pass) {
500             BIO_printf(bio_err,
501                        "No recipient certificate or key specified\n");
502             badarg = 1;
503         }
504     } else if (operation == SMIME_ENCRYPT) {
505         if (!*args && !secret_key && !pwri_pass) {
506             BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n");
507             badarg = 1;
508         }
509         need_rand = 1;
510     } else if (!operation)
511         badarg = 1;
512 
513     if (badarg) {
514  argerr:
515         BIO_printf(bio_err, "Usage cms [options] cert.pem ...\n");
516         BIO_printf(bio_err, "where options are\n");
517         BIO_printf(bio_err, "-encrypt       encrypt message\n");
518         BIO_printf(bio_err, "-decrypt       decrypt encrypted message\n");
519         BIO_printf(bio_err, "-sign          sign message\n");
520         BIO_printf(bio_err, "-verify        verify signed message\n");
521         BIO_printf(bio_err, "-cmsout        output CMS structure\n");
522 # ifndef OPENSSL_NO_DES
523         BIO_printf(bio_err, "-des3          encrypt with triple DES\n");
524         BIO_printf(bio_err, "-des           encrypt with DES\n");
525 # endif
526 # ifndef OPENSSL_NO_SEED
527         BIO_printf(bio_err, "-seed          encrypt with SEED\n");
528 # endif
529 # ifndef OPENSSL_NO_RC2
530         BIO_printf(bio_err, "-rc2-40        encrypt with RC2-40 (default)\n");
531         BIO_printf(bio_err, "-rc2-64        encrypt with RC2-64\n");
532         BIO_printf(bio_err, "-rc2-128       encrypt with RC2-128\n");
533 # endif
534 # ifndef OPENSSL_NO_AES
535         BIO_printf(bio_err, "-aes128, -aes192, -aes256\n");
536         BIO_printf(bio_err,
537                    "               encrypt PEM output with cbc aes\n");
538 # endif
539 # ifndef OPENSSL_NO_CAMELLIA
540         BIO_printf(bio_err, "-camellia128, -camellia192, -camellia256\n");
541         BIO_printf(bio_err,
542                    "               encrypt PEM output with cbc camellia\n");
543 # endif
544         BIO_printf(bio_err,
545                    "-nointern      don't search certificates in message for signer\n");
546         BIO_printf(bio_err,
547                    "-nosigs        don't verify message signature\n");
548         BIO_printf(bio_err,
549                    "-noverify      don't verify signers certificate\n");
550         BIO_printf(bio_err,
551                    "-nocerts       don't include signers certificate when signing\n");
552         BIO_printf(bio_err, "-nodetach      use opaque signing\n");
553         BIO_printf(bio_err,
554                    "-noattr        don't include any signed attributes\n");
555         BIO_printf(bio_err,
556                    "-binary        don't translate message to text\n");
557         BIO_printf(bio_err, "-certfile file other certificates file\n");
558         BIO_printf(bio_err, "-certsout file certificate output file\n");
559         BIO_printf(bio_err, "-signer file   signer certificate file\n");
560         BIO_printf(bio_err,
561                    "-recip  file   recipient certificate file for decryption\n");
562         BIO_printf(bio_err, "-keyid         use subject key identifier\n");
563         BIO_printf(bio_err, "-in file       input file\n");
564         BIO_printf(bio_err,
565                    "-inform arg    input format SMIME (default), PEM or DER\n");
566         BIO_printf(bio_err,
567                    "-inkey file    input private key (if not signer or recipient)\n");
568         BIO_printf(bio_err,
569                    "-keyform arg   input private key format (PEM or ENGINE)\n");
570         BIO_printf(bio_err, "-out file      output file\n");
571         BIO_printf(bio_err,
572                    "-outform arg   output format SMIME (default), PEM or DER\n");
573         BIO_printf(bio_err,
574                    "-content file  supply or override content for detached signature\n");
575         BIO_printf(bio_err, "-to addr       to address\n");
576         BIO_printf(bio_err, "-from ad       from address\n");
577         BIO_printf(bio_err, "-subject s     subject\n");
578         BIO_printf(bio_err,
579                    "-text          include or delete text MIME headers\n");
580         BIO_printf(bio_err,
581                    "-CApath dir    trusted certificates directory\n");
582         BIO_printf(bio_err, "-CAfile file   trusted certificates file\n");
583         BIO_printf(bio_err,
584                    "-no_alt_chains only ever use the first certificate chain found\n");
585         BIO_printf(bio_err,
586                    "-crl_check     check revocation status of signer's certificate using CRLs\n");
587         BIO_printf(bio_err,
588                    "-crl_check_all check revocation status of signer's certificate chain using CRLs\n");
589 # ifndef OPENSSL_NO_ENGINE
590         BIO_printf(bio_err,
591                    "-engine e      use engine e, possibly a hardware device.\n");
592 # endif
593         BIO_printf(bio_err, "-passin arg    input file pass phrase source\n");
594         BIO_printf(bio_err, "-rand file%cfile%c...\n", LIST_SEPARATOR_CHAR,
595                    LIST_SEPARATOR_CHAR);
596         BIO_printf(bio_err,
597                    "               load the file (or the files in the directory) into\n");
598         BIO_printf(bio_err, "               the random number generator\n");
599         BIO_printf(bio_err,
600                    "cert.pem       recipient certificate(s) for encryption\n");
601         goto end;
602     }
603 # ifndef OPENSSL_NO_ENGINE
604     e = setup_engine(bio_err, engine, 0);
605 # endif
606 
607     if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
608         BIO_printf(bio_err, "Error getting password\n");
609         goto end;
610     }
611 
612     if (need_rand) {
613         app_RAND_load_file(NULL, bio_err, (inrand != NULL));
614         if (inrand != NULL)
615             BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
616                        app_RAND_load_files(inrand));
617     }
618 
619     ret = 2;
620 
621     if (!(operation & SMIME_SIGNERS))
622         flags &= ~CMS_DETACHED;
623 
624     if (operation & SMIME_OP) {
625         if (outformat == FORMAT_ASN1)
626             outmode = "wb";
627     } else {
628         if (flags & CMS_BINARY)
629             outmode = "wb";
630     }
631 
632     if (operation & SMIME_IP) {
633         if (informat == FORMAT_ASN1)
634             inmode = "rb";
635     } else {
636         if (flags & CMS_BINARY)
637             inmode = "rb";
638     }
639 
640     if (operation == SMIME_ENCRYPT) {
641         if (!cipher) {
642 # ifndef OPENSSL_NO_DES
643             cipher = EVP_des_ede3_cbc();
644 # else
645             BIO_printf(bio_err, "No cipher selected\n");
646             goto end;
647 # endif
648         }
649 
650         if (secret_key && !secret_keyid) {
651             BIO_printf(bio_err, "No secret key id\n");
652             goto end;
653         }
654 
655         if (*args)
656             encerts = sk_X509_new_null();
657         while (*args) {
658             if (!(cert = load_cert(bio_err, *args, FORMAT_PEM,
659                                    NULL, e, "recipient certificate file")))
660                 goto end;
661             sk_X509_push(encerts, cert);
662             cert = NULL;
663             args++;
664         }
665     }
666 
667     if (certfile) {
668         if (!(other = load_certs(bio_err, certfile, FORMAT_PEM, NULL,
669                                  e, "certificate file"))) {
670             ERR_print_errors(bio_err);
671             goto end;
672         }
673     }
674 
675     if (recipfile && (operation == SMIME_DECRYPT)) {
676         if (!(recip = load_cert(bio_err, recipfile, FORMAT_PEM, NULL,
677                                 e, "recipient certificate file"))) {
678             ERR_print_errors(bio_err);
679             goto end;
680         }
681     }
682 
683     if (operation == SMIME_SIGN_RECEIPT) {
684         if (!(signer = load_cert(bio_err, signerfile, FORMAT_PEM, NULL,
685                                  e, "receipt signer certificate file"))) {
686             ERR_print_errors(bio_err);
687             goto end;
688         }
689     }
690 
691     if (operation == SMIME_DECRYPT) {
692         if (!keyfile)
693             keyfile = recipfile;
694     } else if ((operation == SMIME_SIGN) || (operation == SMIME_SIGN_RECEIPT)) {
695         if (!keyfile)
696             keyfile = signerfile;
697     } else
698         keyfile = NULL;
699 
700     if (keyfile) {
701         key = load_key(bio_err, keyfile, keyform, 0, passin, e,
702                        "signing key file");
703         if (!key)
704             goto end;
705     }
706 
707     if (infile) {
708         if (!(in = BIO_new_file(infile, inmode))) {
709             BIO_printf(bio_err, "Can't open input file %s\n", infile);
710             goto end;
711         }
712     } else
713         in = BIO_new_fp(stdin, BIO_NOCLOSE);
714 
715     if (operation & SMIME_IP) {
716         if (informat == FORMAT_SMIME)
717             cms = SMIME_read_CMS(in, &indata);
718         else if (informat == FORMAT_PEM)
719             cms = PEM_read_bio_CMS(in, NULL, NULL, NULL);
720         else if (informat == FORMAT_ASN1)
721             cms = d2i_CMS_bio(in, NULL);
722         else {
723             BIO_printf(bio_err, "Bad input format for CMS file\n");
724             goto end;
725         }
726 
727         if (!cms) {
728             BIO_printf(bio_err, "Error reading S/MIME message\n");
729             goto end;
730         }
731         if (contfile) {
732             BIO_free(indata);
733             if (!(indata = BIO_new_file(contfile, "rb"))) {
734                 BIO_printf(bio_err, "Can't read content file %s\n", contfile);
735                 goto end;
736             }
737         }
738         if (certsoutfile) {
739             STACK_OF(X509) *allcerts;
740             allcerts = CMS_get1_certs(cms);
741             if (!save_certs(certsoutfile, allcerts)) {
742                 BIO_printf(bio_err,
743                            "Error writing certs to %s\n", certsoutfile);
744                 ret = 5;
745                 goto end;
746             }
747             sk_X509_pop_free(allcerts, X509_free);
748         }
749     }
750 
751     if (rctfile) {
752         char *rctmode = (rctformat == FORMAT_ASN1) ? "rb" : "r";
753         if (!(rctin = BIO_new_file(rctfile, rctmode))) {
754             BIO_printf(bio_err, "Can't open receipt file %s\n", rctfile);
755             goto end;
756         }
757 
758         if (rctformat == FORMAT_SMIME)
759             rcms = SMIME_read_CMS(rctin, NULL);
760         else if (rctformat == FORMAT_PEM)
761             rcms = PEM_read_bio_CMS(rctin, NULL, NULL, NULL);
762         else if (rctformat == FORMAT_ASN1)
763             rcms = d2i_CMS_bio(rctin, NULL);
764         else {
765             BIO_printf(bio_err, "Bad input format for receipt\n");
766             goto end;
767         }
768 
769         if (!rcms) {
770             BIO_printf(bio_err, "Error reading receipt\n");
771             goto end;
772         }
773     }
774 
775     if (outfile) {
776         if (!(out = BIO_new_file(outfile, outmode))) {
777             BIO_printf(bio_err, "Can't open output file %s\n", outfile);
778             goto end;
779         }
780     } else {
781         out = BIO_new_fp(stdout, BIO_NOCLOSE);
782 # ifdef OPENSSL_SYS_VMS
783         {
784             BIO *tmpbio = BIO_new(BIO_f_linebuffer());
785             out = BIO_push(tmpbio, out);
786         }
787 # endif
788     }
789 
790     if ((operation == SMIME_VERIFY) || (operation == SMIME_VERIFY_RECEIPT)) {
791         if (!(store = setup_verify(bio_err, CAfile, CApath)))
792             goto end;
793         X509_STORE_set_verify_cb(store, cms_cb);
794         if (vpm)
795             X509_STORE_set1_param(store, vpm);
796     }
797 
798     ret = 3;
799 
800     if (operation == SMIME_DATA_CREATE) {
801         cms = CMS_data_create(in, flags);
802     } else if (operation == SMIME_DIGEST_CREATE) {
803         cms = CMS_digest_create(in, sign_md, flags);
804     } else if (operation == SMIME_COMPRESS) {
805         cms = CMS_compress(in, -1, flags);
806     } else if (operation == SMIME_ENCRYPT) {
807         flags |= CMS_PARTIAL;
808         cms = CMS_encrypt(encerts, in, cipher, flags);
809         if (!cms)
810             goto end;
811         if (secret_key) {
812             if (!CMS_add0_recipient_key(cms, NID_undef,
813                                         secret_key, secret_keylen,
814                                         secret_keyid, secret_keyidlen,
815                                         NULL, NULL, NULL))
816                 goto end;
817             /* NULL these because call absorbs them */
818             secret_key = NULL;
819             secret_keyid = NULL;
820         }
821         if (pwri_pass) {
822             pwri_tmp = (unsigned char *)BUF_strdup((char *)pwri_pass);
823             if (!pwri_tmp)
824                 goto end;
825             if (!CMS_add0_recipient_password(cms,
826                                              -1, NID_undef, NID_undef,
827                                              pwri_tmp, -1, NULL))
828                 goto end;
829             pwri_tmp = NULL;
830         }
831         if (!(flags & CMS_STREAM)) {
832             if (!CMS_final(cms, in, NULL, flags))
833                 goto end;
834         }
835     } else if (operation == SMIME_ENCRYPTED_ENCRYPT) {
836         cms = CMS_EncryptedData_encrypt(in, cipher,
837                                         secret_key, secret_keylen, flags);
838 
839     } else if (operation == SMIME_SIGN_RECEIPT) {
840         CMS_ContentInfo *srcms = NULL;
841         STACK_OF(CMS_SignerInfo) *sis;
842         CMS_SignerInfo *si;
843         sis = CMS_get0_SignerInfos(cms);
844         if (!sis)
845             goto end;
846         si = sk_CMS_SignerInfo_value(sis, 0);
847         srcms = CMS_sign_receipt(si, signer, key, other, flags);
848         if (!srcms)
849             goto end;
850         CMS_ContentInfo_free(cms);
851         cms = srcms;
852     } else if (operation & SMIME_SIGNERS) {
853         int i;
854         /*
855          * If detached data content we enable streaming if S/MIME output
856          * format.
857          */
858         if (operation == SMIME_SIGN) {
859 
860             if (flags & CMS_DETACHED) {
861                 if (outformat == FORMAT_SMIME)
862                     flags |= CMS_STREAM;
863             }
864             flags |= CMS_PARTIAL;
865             cms = CMS_sign(NULL, NULL, other, in, flags);
866             if (!cms)
867                 goto end;
868             if (econtent_type)
869                 CMS_set1_eContentType(cms, econtent_type);
870 
871             if (rr_to) {
872                 rr = make_receipt_request(rr_to, rr_allorfirst, rr_from);
873                 if (!rr) {
874                     BIO_puts(bio_err,
875                              "Signed Receipt Request Creation Error\n");
876                     goto end;
877                 }
878             }
879         } else
880             flags |= CMS_REUSE_DIGEST;
881         for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++) {
882             CMS_SignerInfo *si;
883             signerfile = sk_OPENSSL_STRING_value(sksigners, i);
884             keyfile = sk_OPENSSL_STRING_value(skkeys, i);
885             signer = load_cert(bio_err, signerfile, FORMAT_PEM, NULL,
886                                e, "signer certificate");
887             if (!signer)
888                 goto end;
889             key = load_key(bio_err, keyfile, keyform, 0, passin, e,
890                            "signing key file");
891             if (!key)
892                 goto end;
893             si = CMS_add1_signer(cms, signer, key, sign_md, flags);
894             if (!si)
895                 goto end;
896             if (rr && !CMS_add1_ReceiptRequest(si, rr))
897                 goto end;
898             X509_free(signer);
899             signer = NULL;
900             EVP_PKEY_free(key);
901             key = NULL;
902         }
903         /* If not streaming or resigning finalize structure */
904         if ((operation == SMIME_SIGN) && !(flags & CMS_STREAM)) {
905             if (!CMS_final(cms, in, NULL, flags))
906                 goto end;
907         }
908     }
909 
910     if (!cms) {
911         BIO_printf(bio_err, "Error creating CMS structure\n");
912         goto end;
913     }
914 
915     ret = 4;
916     if (operation == SMIME_DECRYPT) {
917         if (flags & CMS_DEBUG_DECRYPT)
918             CMS_decrypt(cms, NULL, NULL, NULL, NULL, flags);
919 
920         if (secret_key) {
921             if (!CMS_decrypt_set1_key(cms,
922                                       secret_key, secret_keylen,
923                                       secret_keyid, secret_keyidlen)) {
924                 BIO_puts(bio_err, "Error decrypting CMS using secret key\n");
925                 goto end;
926             }
927         }
928 
929         if (key) {
930             if (!CMS_decrypt_set1_pkey(cms, key, recip)) {
931                 BIO_puts(bio_err, "Error decrypting CMS using private key\n");
932                 goto end;
933             }
934         }
935 
936         if (pwri_pass) {
937             if (!CMS_decrypt_set1_password(cms, pwri_pass, -1)) {
938                 BIO_puts(bio_err, "Error decrypting CMS using password\n");
939                 goto end;
940             }
941         }
942 
943         if (!CMS_decrypt(cms, NULL, NULL, indata, out, flags)) {
944             BIO_printf(bio_err, "Error decrypting CMS structure\n");
945             goto end;
946         }
947     } else if (operation == SMIME_DATAOUT) {
948         if (!CMS_data(cms, out, flags))
949             goto end;
950     } else if (operation == SMIME_UNCOMPRESS) {
951         if (!CMS_uncompress(cms, indata, out, flags))
952             goto end;
953     } else if (operation == SMIME_DIGEST_VERIFY) {
954         if (CMS_digest_verify(cms, indata, out, flags) > 0)
955             BIO_printf(bio_err, "Verification successful\n");
956         else {
957             BIO_printf(bio_err, "Verification failure\n");
958             goto end;
959         }
960     } else if (operation == SMIME_ENCRYPTED_DECRYPT) {
961         if (!CMS_EncryptedData_decrypt(cms, secret_key, secret_keylen,
962                                        indata, out, flags))
963             goto end;
964     } else if (operation == SMIME_VERIFY) {
965         if (CMS_verify(cms, other, store, indata, out, flags) > 0)
966             BIO_printf(bio_err, "Verification successful\n");
967         else {
968             BIO_printf(bio_err, "Verification failure\n");
969             if (verify_retcode)
970                 ret = verify_err + 32;
971             goto end;
972         }
973         if (signerfile) {
974             STACK_OF(X509) *signers;
975             signers = CMS_get0_signers(cms);
976             if (!save_certs(signerfile, signers)) {
977                 BIO_printf(bio_err,
978                            "Error writing signers to %s\n", signerfile);
979                 ret = 5;
980                 goto end;
981             }
982             sk_X509_free(signers);
983         }
984         if (rr_print)
985             receipt_request_print(bio_err, cms);
986 
987     } else if (operation == SMIME_VERIFY_RECEIPT) {
988         if (CMS_verify_receipt(rcms, cms, other, store, flags) > 0)
989             BIO_printf(bio_err, "Verification successful\n");
990         else {
991             BIO_printf(bio_err, "Verification failure\n");
992             goto end;
993         }
994     } else {
995         if (noout) {
996             if (print)
997                 CMS_ContentInfo_print_ctx(out, cms, 0, NULL);
998         } else if (outformat == FORMAT_SMIME) {
999             if (to)
1000                 BIO_printf(out, "To: %s\n", to);
1001             if (from)
1002                 BIO_printf(out, "From: %s\n", from);
1003             if (subject)
1004                 BIO_printf(out, "Subject: %s\n", subject);
1005             if (operation == SMIME_RESIGN)
1006                 ret = SMIME_write_CMS(out, cms, indata, flags);
1007             else
1008                 ret = SMIME_write_CMS(out, cms, in, flags);
1009         } else if (outformat == FORMAT_PEM)
1010             ret = PEM_write_bio_CMS_stream(out, cms, in, flags);
1011         else if (outformat == FORMAT_ASN1)
1012             ret = i2d_CMS_bio_stream(out, cms, in, flags);
1013         else {
1014             BIO_printf(bio_err, "Bad output format for CMS file\n");
1015             goto end;
1016         }
1017         if (ret <= 0) {
1018             ret = 6;
1019             goto end;
1020         }
1021     }
1022     ret = 0;
1023  end:
1024     if (ret)
1025         ERR_print_errors(bio_err);
1026     if (need_rand)
1027         app_RAND_write_file(NULL, bio_err);
1028     sk_X509_pop_free(encerts, X509_free);
1029     sk_X509_pop_free(other, X509_free);
1030     if (vpm)
1031         X509_VERIFY_PARAM_free(vpm);
1032     if (sksigners)
1033         sk_OPENSSL_STRING_free(sksigners);
1034     if (skkeys)
1035         sk_OPENSSL_STRING_free(skkeys);
1036     if (secret_key)
1037         OPENSSL_free(secret_key);
1038     if (secret_keyid)
1039         OPENSSL_free(secret_keyid);
1040     if (pwri_tmp)
1041         OPENSSL_free(pwri_tmp);
1042     if (econtent_type)
1043         ASN1_OBJECT_free(econtent_type);
1044     if (rr)
1045         CMS_ReceiptRequest_free(rr);
1046     if (rr_to)
1047         sk_OPENSSL_STRING_free(rr_to);
1048     if (rr_from)
1049         sk_OPENSSL_STRING_free(rr_from);
1050     X509_STORE_free(store);
1051     X509_free(cert);
1052     X509_free(recip);
1053     X509_free(signer);
1054     EVP_PKEY_free(key);
1055     CMS_ContentInfo_free(cms);
1056     CMS_ContentInfo_free(rcms);
1057     BIO_free(rctin);
1058     BIO_free(in);
1059     BIO_free(indata);
1060     BIO_free_all(out);
1061     if (passin)
1062         OPENSSL_free(passin);
1063     return (ret);
1064 }
1065 
1066 static int save_certs(char *signerfile, STACK_OF(X509) *signers)
1067 {
1068     int i;
1069     BIO *tmp;
1070     if (!signerfile)
1071         return 1;
1072     tmp = BIO_new_file(signerfile, "w");
1073     if (!tmp)
1074         return 0;
1075     for (i = 0; i < sk_X509_num(signers); i++)
1076         PEM_write_bio_X509(tmp, sk_X509_value(signers, i));
1077     BIO_free(tmp);
1078     return 1;
1079 }
1080 
1081 /* Minimal callback just to output policy info (if any) */
1082 
1083 static int cms_cb(int ok, X509_STORE_CTX *ctx)
1084 {
1085     int error;
1086 
1087     error = X509_STORE_CTX_get_error(ctx);
1088 
1089     verify_err = error;
1090 
1091     if ((error != X509_V_ERR_NO_EXPLICIT_POLICY)
1092         && ((error != X509_V_OK) || (ok != 2)))
1093         return ok;
1094 
1095     policies_print(NULL, ctx);
1096 
1097     return ok;
1098 
1099 }
1100 
1101 static void gnames_stack_print(BIO *out, STACK_OF(GENERAL_NAMES) *gns)
1102 {
1103     STACK_OF(GENERAL_NAME) *gens;
1104     GENERAL_NAME *gen;
1105     int i, j;
1106     for (i = 0; i < sk_GENERAL_NAMES_num(gns); i++) {
1107         gens = sk_GENERAL_NAMES_value(gns, i);
1108         for (j = 0; j < sk_GENERAL_NAME_num(gens); j++) {
1109             gen = sk_GENERAL_NAME_value(gens, j);
1110             BIO_puts(out, "    ");
1111             GENERAL_NAME_print(out, gen);
1112             BIO_puts(out, "\n");
1113         }
1114     }
1115     return;
1116 }
1117 
1118 static void receipt_request_print(BIO *out, CMS_ContentInfo *cms)
1119 {
1120     STACK_OF(CMS_SignerInfo) *sis;
1121     CMS_SignerInfo *si;
1122     CMS_ReceiptRequest *rr;
1123     int allorfirst;
1124     STACK_OF(GENERAL_NAMES) *rto, *rlist;
1125     ASN1_STRING *scid;
1126     int i, rv;
1127     sis = CMS_get0_SignerInfos(cms);
1128     for (i = 0; i < sk_CMS_SignerInfo_num(sis); i++) {
1129         si = sk_CMS_SignerInfo_value(sis, i);
1130         rv = CMS_get1_ReceiptRequest(si, &rr);
1131         BIO_printf(bio_err, "Signer %d:\n", i + 1);
1132         if (rv == 0)
1133             BIO_puts(bio_err, "  No Receipt Request\n");
1134         else if (rv < 0) {
1135             BIO_puts(bio_err, "  Receipt Request Parse Error\n");
1136             ERR_print_errors(bio_err);
1137         } else {
1138             char *id;
1139             int idlen;
1140             CMS_ReceiptRequest_get0_values(rr, &scid, &allorfirst,
1141                                            &rlist, &rto);
1142             BIO_puts(out, "  Signed Content ID:\n");
1143             idlen = ASN1_STRING_length(scid);
1144             id = (char *)ASN1_STRING_data(scid);
1145             BIO_dump_indent(out, id, idlen, 4);
1146             BIO_puts(out, "  Receipts From");
1147             if (rlist) {
1148                 BIO_puts(out, " List:\n");
1149                 gnames_stack_print(out, rlist);
1150             } else if (allorfirst == 1)
1151                 BIO_puts(out, ": First Tier\n");
1152             else if (allorfirst == 0)
1153                 BIO_puts(out, ": All\n");
1154             else
1155                 BIO_printf(out, " Unknown (%d)\n", allorfirst);
1156             BIO_puts(out, "  Receipts To:\n");
1157             gnames_stack_print(out, rto);
1158         }
1159         if (rr)
1160             CMS_ReceiptRequest_free(rr);
1161     }
1162 }
1163 
1164 static STACK_OF(GENERAL_NAMES) *make_names_stack(STACK_OF(OPENSSL_STRING) *ns)
1165 {
1166     int i;
1167     STACK_OF(GENERAL_NAMES) *ret;
1168     GENERAL_NAMES *gens = NULL;
1169     GENERAL_NAME *gen = NULL;
1170     ret = sk_GENERAL_NAMES_new_null();
1171     if (!ret)
1172         goto err;
1173     for (i = 0; i < sk_OPENSSL_STRING_num(ns); i++) {
1174         char *str = sk_OPENSSL_STRING_value(ns, i);
1175         gen = a2i_GENERAL_NAME(NULL, NULL, NULL, GEN_EMAIL, str, 0);
1176         if (!gen)
1177             goto err;
1178         gens = GENERAL_NAMES_new();
1179         if (!gens)
1180             goto err;
1181         if (!sk_GENERAL_NAME_push(gens, gen))
1182             goto err;
1183         gen = NULL;
1184         if (!sk_GENERAL_NAMES_push(ret, gens))
1185             goto err;
1186         gens = NULL;
1187     }
1188 
1189     return ret;
1190 
1191  err:
1192     if (ret)
1193         sk_GENERAL_NAMES_pop_free(ret, GENERAL_NAMES_free);
1194     if (gens)
1195         GENERAL_NAMES_free(gens);
1196     if (gen)
1197         GENERAL_NAME_free(gen);
1198     return NULL;
1199 }
1200 
1201 static CMS_ReceiptRequest *make_receipt_request(STACK_OF(OPENSSL_STRING)
1202                                                 *rr_to, int rr_allorfirst, STACK_OF(OPENSSL_STRING)
1203                                                 *rr_from)
1204 {
1205     STACK_OF(GENERAL_NAMES) *rct_to, *rct_from;
1206     CMS_ReceiptRequest *rr;
1207     rct_to = make_names_stack(rr_to);
1208     if (!rct_to)
1209         goto err;
1210     if (rr_from) {
1211         rct_from = make_names_stack(rr_from);
1212         if (!rct_from)
1213             goto err;
1214     } else
1215         rct_from = NULL;
1216     rr = CMS_ReceiptRequest_create0(NULL, -1, rr_allorfirst, rct_from,
1217                                     rct_to);
1218     return rr;
1219  err:
1220     return NULL;
1221 }
1222 
1223 #endif
1224